Means for securing curved shaft-heels to shaft-irons.



J. M. MEYER.

MEANS FOR SECURING GURVED SHAFT HEELS T0 SHAFT IRONS.

APPLICATION FILED DEC. 6, 1907.

1,032,075.. E Patented Julj 9, 1912.

I E d IINITEI) TATE PATENT FFIE JOHN M. MEYER, OF CINCINNATI, OHIO, ASSIG-NOR OF TWO-TI-IIRDS TO THE SAYERS AND SCOVILL COMPANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO.

MEANS FOR SECURING CURVED SHAFT-HEELS TO SHAFT-IRONS.

Specification of Letters Patent.

Patented July 9, 1912.

Application filed December 6, 1907. Serial No. 405,376.

To all whom it may concern,

Be it known that I, JOHN M. MEYER, a citizen of the United States, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Means for Securing Curved Shaft-Heels to Shaft-Irons, of which the following is a specification.

It is the object of my invention to pro vide securing means for attaching the curved heels of shafts to the shaft-irons which will prevent the splitting of the curved portions of the shafts, and the invention will be readily understood from the following description and claim, and from the drawings, in which latter:

Figure 1 represents a rear perspective View of a pair of shafts partly broken away, having my improved invent-ion applied thereto. Fig. 2 is an enlarged front elevation of my improved device with the shaft partly broken away. Fig. 3 is a side elevation of the same. Fig. 4L is a crosssection of the same on the line wcc of Fig. 2; and, Fig. 5 is a central longitudinal section of the same on the line yy of Fig. 2.

A A represent shafts, the heels B of which are curved downwardly to a point adjacent the front axle C of the vehicle.

D D are shaft-couplings, the shaft-irons E E of which are curved to correspond substantially to the curve of the heels of the shafts, the shaft-irons being secured to the under-sides of the heels of the shafts.

In practice, the curving of the shaft-heel is accomplished by steaming the wood of which the shaft is composed and bending it to shape while saturated with moisture, the same being dried in its curved form. This bending of the wood subjects the outer surface of the curve to great strains and to liability to fracture at the points where the same is perforated for the reception of bolts connecting the heel to the shaft-iron. In order to prevent this splitting I provide reinforce-plates of peculiar form for main taining the wood in its curved shape without fracture. The heel of the shaft is provided with apertures Z2 and the shaft-iron is provided with apertures 65.

F is a reinforce-plate for keeping the wood in its bent shape without fracture at the apertures in the curved heel of the shaft. I

The inner face of the reinforce-plate is curved longitudinally as shown at f to correspond with the longitudinal curve of the heel of the shaft and the reinforce-plate is further curved laterally as shown at f to correspond with the transverse rounding b of said heel. The inner faces of the reinforce-plates are thus curved longitudinally and laterally for fitting the curve of the curved heel of the shaft and are clamped against the outer curved surface of the heel of the shaft for reinforcing the fibers of the wood adjacent the apertures in the shaft. I prefer to make these reinforceplates with longitudinally extending ears f f and laterally extending wings f f for extending over those portions of the surface of the wood adjacent the apertures which are liable to fracture without covering more of the surface of the wood than necessary for the purpose.

For clamping the reinforce-plate in place I employ a threaded rod Gr extending through. an aperture f in the reinforceplate and through the apertures Z) and (Z respectively in the shaft-heel and shaft-iron, a nut H screwing over the threaded rod and clamping the parts between the head 9 of the threaded rod and the nut. In my improved construction the fibers at the apertures are reinforced so as to prevent the beginning of fractures thereof at their most vulnerable points. My improved construc tion forms a cheap and ready means for preventing the fracturing mentioned. It is readily applied and is neat in appearance when applied.

Having thus fully described my invention what I claim as new and desire to, secure by Letters Patent is:

In means for securing curved shaft-irons to wooden shaft-heels, the combination with a longitudinally curved wood shaft-heel having a transversely curved upper surface, and a curved shaft-iron extending longitudinally-of said curved shaft-heel underthe same, of a protecting reinforce-plate F received over said curved shaft-heel and provided with longitudinally extending ears f f forming the major axis of said reinforce-plate, and with laterally extending wings f f forming the minor axis of said reinforce-plate, said ears and wings defining notches therebetween, the under surface of said reinforce-plate with its ears and wings being formed parallel to its said major and minor akes with crossing conmy name hereto in the presence of two subcave curves, and securmg means passmg scrlbmg wltnesses.

hI'OL '11 t r sald re1nf01 ce plate, shaft heel and JOHN M. MEYER shaft-Hon for clamplng sald parts together,

5 substantlally as and for the purpose de- Wvltnesses:

scribed. v CONSTANT SOUTHWORTI-I,

In testlmony whereof, I have subscrlbed FLORENCE QUINN.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Eatents,

Washington, D. C. 

